[Moderator using google translate:] Hello everyone, I'm a basic user, I installed the 7x86 centos, but I can not install the epel releases, looking on google, I read that they do not exist for this version. can any of you expert advice on what I have to do? thank you all

This is predominantly an English language forum so I took the libery of appending a Google translate of your post.

If you are talking about the 32 bit CentOS 7 "altarch" and the EPEL repository, then sorry, but you're out of luck. The maintainers of EPEL follow RHEL and since there is no 32 bit x86 build of RHEL, there is also no EPEL for 32 bit x86 CentOS at all. Your only alternative is to build the packages yourself using 'mock' and the EPEL provided SRPM that they use to build teh 64 bit version.

Or, alternatively, since there are no processors manufactured since 2005 (apart from a few mobile and Atom ones) that are not 64 bit capable, rip out your 32 bit install and use the 64 bit main distro instead.

CentOS 5 died in March 2017 - migrate NOW!
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